Psychology

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Across
  1. 2. Painter who created the 'Mona Lisa' painting
  2. 5. The number of chambers the heart has
  3. 6. The largest species of shark
  4. 9. The artist that cut his ear off
  5. 11. The author of the play Orthello
  6. 12. The only metal that is liquid at room temperature
  7. 13. The element with the chemical symbol 'Fe'
Down
  1. 1. The acronym for this is WWW
  2. 3. The process by which plants transform carbon dioxide into oxygen
  3. 4. The longest river in the world
  4. 7. The most spoken language in the world
  5. 8. The empire that was ruled by Julius Caesar
  6. 10. The currency in Japan
  7. 12. Planet that is closest to the sun